Question 1 from 9: Who invented the shower?
Question 2 from 9: Who made the first cocoa powder in Amsterdam in 1828?
Question 3 from 9: In 1480, the first English-French bilingual dictionary, containing 36 pages, was published. Who published the dictionary?
Question 4 from 9: Who discovered the saccharine?
Question 5 from 9: Who invented the first production line in 1901?
Question 6 from 9: Who used the first conveyor belt in a car factory?
Question 7 from 9: Who is the inventor of the bakelite?
Question 8 from 9: Who invented the mercury barometer?
Question 9 from 9: Who invented the gyroscope in 1852?